Aptitude Questions: Ratio & Proportion Set 8

Hello Aspirants. Welcome to Online Quantitative Aptitude section in AffairsCloud.com. Here we are creating question sample in Ratio & Proportion , which is common for all the competitive exams. We have included Some questions that are repeatedly asked in exams !!

Questions Penned by Yogit

A company reduces his employee in the ratio 14 : 12 and increases their wages in the ratio 16:18, Determine whether the bill of wages increases or not and in what ratio.
a) Decreases, 28: 27
b) Increases, 27:28
c) Decreases, 29:28
d) Increases, 28:29
e) None of these

A bucket contains liquid A and B in the ratio 4:5. 36 litre of the mixture is taken out and filled with 36 litre of B. Now the ratio changes to 2:5. Find the quantity of liquid B initially.
a) 55ltr
b) 56ltr
c) 57ltr
d) 58ltr
e) None of these

Two numbers are in the ratio of 5:6 and if 4 is added to the first number and 4 is subtracted from the second number then the ratio becomes 3:2. Find the difference between two numbers.
a) 2.5
b) 3.5
c) 4.5
d) 6.5
e) None of these

Answer & Explanation

Answer – a) 2.5Explanation :
(5x + 4)/ (6x -4) = 3/2

The income of riya and priya are in the ratio of 4:5 and their expenditure is in the ratio of 2:3. If each of them saves 2000, then find their income.
a) 4000, 6000
b) 4000, 5000
c) 5000, 4000
d) 5000, 6000
e) None of these

A 50 litre of mixture contains milk and water in the ratio 2:3. How much milk must be added to the mixture so that it contains milk and water in the proportion of 3:2.
a) 20
b) 25
c) 30
d) 35
e) None of these

Answer & Explanation

Answer – b) 25Explanation :
(20 + x)/30 = 3/2

Two alloys contain platinum and gold in the ratio of 1:2 and 1:3 respectively. A third alloy C is formed by mixing alloys one and alloy two in the ratio of 3:4. Find the percentage of gold in the mixture
a) 79.2/7%
b) 71.2/7%
c) 73.2/7%
d) 71.3/7%
e) None of these

Answer & Explanation

Answer – d) 71.3/7%Explanation :
Platinum = 1/3 and 1/4
gold = 2/3 and 3/4
Alloy one and two are mixed in the ratio of 3:4, so ratio of platinum and gold in final ratio – 2:5
So gold % = (5/7)*100

The sum of three numbers is 980. If the ratio between first and second number is 3:4 and that of second and third is 3:7. Find the difference between first and last number.
a) 380
b) 360
c) 340
d) 400
e) None of these

The ratio between number of girls and boys in a school is 5: 6. If 40 percent of the boys and 20 percent of the girls are scholarship holders, what percentage of the students does not get scholarship?
a) 68%
b) 69%
c) 71%
d) 80%
e) None of these

A bag contains 25p coins, 50p coins and 1 rupee coins whose values are in the ratio of 8:4:2. The total values of coins are 840. Then find the total amount in rupees.
a) 220
b) 240
c) 260
d) 280
e) None of these

An amount is to be divided between A, B and C in the ratio 2:3:5 respectively. If C gives 200 of his share to B the ratio among A, B and C becomes 3:5:4. What is the total sum?
a) 5000
b) 6000
c) 7000
d) 8000
e) None of these